Penile sleevs are primarily made of silicone and come in different textures, colors, shapes and sizes. Some also have vibration. These sex toys can be helpful for men who have trouble maintaining an erection because as a cook ring, some are designed to capture the blood into the penile. But like most sex toys, they are not designed to make men feel ashamed of their natural size and shape, but for a better sexual experience for both them and their partner. After all, many penile sleeves includes knobs, rubber studs and other wild textures that are clearly intended to create a new type of experience. Maybe it should be categorized as a sex toy for couples ?